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G50 vs. 915 vs. 930 flange-to-flange width

Hello there!

Anyone knows if CV-flange to flange width on 915, 930 and G50 gearboxes is the same?

Thing is, i'm planning to use 930 gearbox in SC body with Carrera axles. Yes, it's little hodge-podge but everything indicates that it will work. Anyway, it's worth checking one more time.

Carrera CV's have same diameter as 930 ones (108mm) so they will bolt on 1:1, but width is the issue...

Anyone?

Hayden?

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Last edited by beepbeep; 01-07-2004 at 05:53 PM..
Old 01-07-2004, 04:37 PM
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since the same CVs are used with all three, I would guess they are the same.

just a guess, but an educated guess...

Jim
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Old 01-07-2004, 04:54 PM
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Naah, they are not the same...Carrera and 930 CV's have same diameter (108mm) but 930 CV's are much thicker. SC CV's have 100mm dia.

Carrera and SC shafts are equally long (same suspension) but 930 shafts are shorter (different swing-arms).

It's a puzzle.
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Old 01-07-2004, 04:58 PM
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Goran,

The 930 and 915 final drive assembly from drive flange face to face are the same. The diameter of the CV is not a factor and the extra thickness on the 930 flanges is inboard of the CV mount face.

The G50 final drive is wider, by some 5mm measured the same way.

Regards

Hayden
Old 01-07-2004, 05:11 PM
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Oki doki...

So do you believe we can use Carrera shafts on SC suspension and 930 transmission?

I understand that Carrera shafs will be 2.5mm shorter a piece than SC ones, but my hope is that they are made to compensate for much broader swings due to suspension travel so telescoping additional 2.5mm wouldn't do much harm, no?


There are few things that made me choose Carrera shafts:

1. CV's are 108mm and fit on 930 flange
2. They are sold pre-assembled (no messy CV greasing)
3. They are cheap
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Old 01-07-2004, 05:21 PM
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Goran,

Yes, I say you can use the parts in the combination you desire.
Logic regarding the 2.5 mm variation is correct. The only caveat I would say is avoid using used CV joints in this assmebly, shifted wear patterns etc. could lead to premature and accelerated wear.

Regards

Hayden
Old 01-07-2004, 05:35 PM
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Well 930 shafts would be optimal but:

1. They are mucho expen$ive (roughly x2)
2. Stubs are different (dual bearings) and won't fit SC swing arms

I'm not into kinetic-coupling theory enough to decide what to use instead of CV's. What other joints can be used? 935 cardan-style with seems little over the top (optimized for hard & non-moving suspension?)...i don't like axles compensating for suspension by going in and out of splines. Besides, those Guibos (Hardy's?) are probably $$$$.

Are there some Rzepa (sp?) couplings worth the hassle or what is generally used in these cases?

P.S.
Thank you very much, you have really really helped us a lot. Here's new adapter-plate done with your input:
http://project911.luminasweden.com/log_images/adapterplatta.jpg
http://project911.luminasweden.com/log_images/167_6748.jpg

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Last edited by beepbeep; 01-07-2004 at 05:54 PM..
Old 01-07-2004, 05:52 PM
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